Japan, Magnescale
Magnescale SR74 / SR75 Absolute Linear Encoder
Made in Japan
Manufacturer: Magnescale Co., Ltd.
Model: SR74 / SR75
Features
- Maximum resolution : 0.01 µm(SR75:Mitsubishi Electric), 0.05 µm(SR74)
- Accuracy(at 20°C) : (3+3L/1,000) µm p-p or (5+5L/1,000) µm p-p
- Measuring Length(ML) : 70 to 2,040 mm
- Maximum response speed : 200 m/min (SR75), 50 m/ min (SR74: Resolution: 0.1 µm, Minimum phase difference : at 50 ns)
- Protocol (SR75) : Mitsubishi Electric, Panasonic, Yaskawa Electric
- Output signal (SR74) : A/B/Reference point line driver signal, compliant with EIA-422
- Incremental serial bidirectional signal, compliant with EIA-485(SR75)
Specifications
| Specifications | |||
|---|---|---|---|
| Model | SR74 | SR75 | |
| Measuring length(L) | 70 to 2040 mm (26 types) 70, 120, 170, 220, 270, 320, 370, 420, 470, 520, 570, 620, 720, 770, 820, 920, 1020, 1140, 1240, 1340, 1440, 1540, 1640, 1740, 1840, 2040 mm | ||
| Thermal expansion coefficient | 12±1 × 10-6/ °C | ||
| Output signal | A/B/Reference point line driver signal, compliant with EIA-422 | Incremental serial bidirectional signal, compliant with EIA-485 | |
| Accuracy (20°C) | (3+3L/1,000) µm p-p or (5+5L/1,000) µm p-p L:Measuring length (mm) | ||
| Resolution (Number of divisions) | Selectable from 0.05/0.1/0.5/1 µm (Set at factory shipping) | Mitsubishi : Selectable from 0.01/0.05/0.1 µm (Set at factory shipping) Panasonic : Selectable from 0.05/0.1/0.5/1 µm (Set at factory shipping) YASKAWA : Selectable from 1/8192, 1/1024 divisions (Set at factory shipping) | |
| Reference point position | None, Center point, Multi-point (40 mm pitch), Reference mark (standard pitch: 20 mm), User-selected point (1 mm pitch) | None, Center point, User-selected point (1 mm pitch) | |
| Power supply voltage | DC 4.75 to 5.25 V (At cable connection end) | ||
| Consumption current | 200 mA (at 120 Ω terminal)or less | ||
| Inrush current | 2A or less (When the power supply rise time is 10 ms) | ||
| Maximum response speed | 50m/min(Resolution: 0.1 µm, Minimum phase difference: at 50 ns) | 200m/min(User-selected resolution setting) | |
| Vibration resistance | 150 m/s2 (50 Hz to 3,000 Hz) | ||
| Impact resistance | 350 m/s2 (11ms) | ||
| Protective design grade | IP54 (Air purge not included), IP65 (Air purge included) | ||
| Other protections | Oil lubricant can also be used under severe environmental conditions. | ||
| Power supply protection | In the case of errors such as a reverse-connected power supply or over-voltage, the internal fuse is cut to protect the power being supplied and wiring. | ||
| Product Safety | FCC Part15 Subpart B Class A ICES-003 Class A Digital Device EN/BS 61000-6-2, EN/BS 61000-6-4 | ||
| Product Environment | EN/BS 63000 | ||
| Operating temperature | 0 to +50°C | ||
| Storage temperature | -20 to +55°C | ||
| Mass | Approx. 0.27 kg + 1.36 kg/m or less | ||
| Slider sliding resistance | 1 N or less | ||
